/Engine/Source/Runtime/Core/Public/Experimental/ConcurrentLinearAllocator.h
static constexpr bool SupportsFastPath = ((BlockAllocationTag::BlockSize <= (64 * 1024)) || 1 ) && FMath::IsPowerOfTwo(BlockAllocationTag::BlockSize) && ! 0 && !BlockAllocationTag::RequiresAccurateSize && BlockAllocationTag::Allocator::SupportsAlignment;